1 /* 2 * Copyright 2011 Red Hat, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 21 */ 22 23 #include <linux/dma-buf-map.h> 24 25 #include <drm/drm_fourcc.h> 26 27 #include "qxl_drv.h" 28 #include "qxl_object.h" 29 30 static int alloc_clips(struct qxl_device *qdev, 31 struct qxl_release *release, 32 unsigned int num_clips, 33 struct qxl_bo **clips_bo) 34 { 35 int size = sizeof(struct qxl_clip_rects) + sizeof(struct qxl_rect) * num_clips; 36 37 return qxl_alloc_bo_reserved(qdev, release, size, clips_bo); 38 } 39 40 /* returns a pointer to the already allocated qxl_rect array inside 41 * the qxl_clip_rects. This is *not* the same as the memory allocated 42 * on the device, it is offset to qxl_clip_rects.chunk.data */ 43 static struct qxl_rect *drawable_set_clipping(struct qxl_device *qdev, 44 unsigned int num_clips, 45 struct qxl_bo *clips_bo) 46 { 47 struct dma_buf_map map; 48 struct qxl_clip_rects *dev_clips; 49 int ret; 50 51 ret = qxl_bo_vmap_locked(clips_bo, &map); 52 if (ret) 53 return NULL; 54 dev_clips = map.vaddr; /* TODO: Use mapping abstraction properly */ 55 56 dev_clips->num_rects = num_clips; 57 dev_clips->chunk.next_chunk = 0; 58 dev_clips->chunk.prev_chunk = 0; 59 dev_clips->chunk.data_size = sizeof(struct qxl_rect) * num_clips; 60 return (struct qxl_rect *)dev_clips->chunk.data; 61 } 62 63 static int 64 alloc_drawable(struct qxl_device *qdev, struct qxl_release **release) 65 { 66 return qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable), 67 QXL_RELEASE_DRAWABLE, release, NULL); 68 } 69 70 static void 71 free_drawable(struct qxl_device *qdev, struct qxl_release *release) 72 { 73 qxl_release_free(qdev, release); 74 } 75 76 /* release needs to be reserved at this point */ 77 static int 78 make_drawable(struct qxl_device *qdev, int surface, uint8_t type, 79 const struct qxl_rect *rect, 80 struct qxl_release *release) 81 { 82 struct qxl_drawable *drawable; 83 int i; 84 85 drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); 86 if (!drawable) 87 return -ENOMEM; 88 89 drawable->type = type; 90 91 drawable->surface_id = surface; /* Only primary for now */ 92 drawable->effect = QXL_EFFECT_OPAQUE; 93 drawable->self_bitmap = 0; 94 drawable->self_bitmap_area.top = 0; 95 drawable->self_bitmap_area.left = 0; 96 drawable->self_bitmap_area.bottom = 0; 97 drawable->self_bitmap_area.right = 0; 98 /* FIXME: add clipping */ 99 drawable->clip.type = SPICE_CLIP_TYPE_NONE; 100 101 /* 102 * surfaces_dest[i] should apparently be filled out with the 103 * surfaces that we depend on, and surface_rects should be 104 * filled with the rectangles of those surfaces that we 105 * are going to use. 106 */ 107 for (i = 0; i < 3; ++i) 108 drawable->surfaces_dest[i] = -1; 109 110 if (rect) 111 drawable->bbox = *rect; 112 113 drawable->mm_time = qdev->rom->mm_clock; 114 qxl_release_unmap(qdev, release, &drawable->release_info); 115 return 0; 116 } 117 118 /* push a draw command using the given clipping rectangles as 119 * the sources from the shadow framebuffer. 120 * 121 * Right now implementing with a single draw and a clip list. Clip 122 * lists are known to be a problem performance wise, this can be solved 123 * by treating them differently in the server. 124 */ 125 void qxl_draw_dirty_fb(struct qxl_device *qdev, 126 struct drm_framebuffer *fb, 127 struct qxl_bo *bo, 128 unsigned int flags, unsigned int color, 129 struct drm_clip_rect *clips, 130 unsigned int num_clips, int inc, 131 uint32_t dumb_shadow_offset) 132 { 133 /* 134 * TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should 135 * send a fill command instead, much cheaper. 136 * 137 * See include/drm/drm_mode.h 138 */ 139 struct drm_clip_rect *clips_ptr; 140 int i; 141 int left, right, top, bottom; 142 int width, height; 143 struct qxl_drawable *drawable; 144 struct qxl_rect drawable_rect; 145 struct qxl_rect *rects; 146 int stride = fb->pitches[0]; 147 /* depth is not actually interesting, we don't mask with it */ 148 int depth = fb->format->cpp[0] * 8; 149 struct dma_buf_map surface_map; 150 uint8_t *surface_base; 151 struct qxl_release *release; 152 struct qxl_bo *clips_bo; 153 struct qxl_drm_image *dimage; 154 int ret; 155 156 ret = alloc_drawable(qdev, &release); 157 if (ret) 158 return; 159 160 clips->x1 += dumb_shadow_offset; 161 clips->x2 += dumb_shadow_offset; 162 163 left = clips->x1; 164 right = clips->x2; 165 top = clips->y1; 166 bottom = clips->y2; 167 168 /* skip the first clip rect */ 169 for (i = 1, clips_ptr = clips + inc; 170 i < num_clips; i++, clips_ptr += inc) { 171 left = min_t(int, left, (int)clips_ptr->x1); 172 right = max_t(int, right, (int)clips_ptr->x2); 173 top = min_t(int, top, (int)clips_ptr->y1); 174 bottom = max_t(int, bottom, (int)clips_ptr->y2); 175 } 176 177 width = right - left; 178 height = bottom - top; 179 180 ret = alloc_clips(qdev, release, num_clips, &clips_bo); 181 if (ret) 182 goto out_free_drawable; 183 184 ret = qxl_image_alloc_objects(qdev, release, 185 &dimage, 186 height, stride); 187 if (ret) 188 goto out_free_clips; 189 190 /* do a reservation run over all the objects we just allocated */ 191 ret = qxl_release_reserve_list(release, true); 192 if (ret) 193 goto out_free_image; 194 195 drawable_rect.left = left; 196 drawable_rect.right = right; 197 drawable_rect.top = top; 198 drawable_rect.bottom = bottom; 199 200 ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect, 201 release); 202 if (ret) 203 goto out_release_backoff; 204 205 ret = qxl_bo_vmap_locked(bo, &surface_map); 206 if (ret) 207 goto out_release_backoff; 208 surface_base = surface_map.vaddr; /* TODO: Use mapping abstraction properly */ 209 210 ret = qxl_image_init(qdev, release, dimage, surface_base, 211 left - dumb_shadow_offset, 212 top, width, height, depth, stride); 213 qxl_bo_vunmap_locked(bo); 214 if (ret) 215 goto out_release_backoff; 216 217 rects = drawable_set_clipping(qdev, num_clips, clips_bo); 218 if (!rects) { 219 ret = -EINVAL; 220 goto out_release_backoff; 221 } 222 drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); 223 224 drawable->clip.type = SPICE_CLIP_TYPE_RECTS; 225 drawable->clip.data = qxl_bo_physical_address(qdev, 226 clips_bo, 0); 227 228 drawable->u.copy.src_area.top = 0; 229 drawable->u.copy.src_area.bottom = height; 230 drawable->u.copy.src_area.left = 0; 231 drawable->u.copy.src_area.right = width; 232 233 drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT; 234 drawable->u.copy.scale_mode = 0; 235 drawable->u.copy.mask.flags = 0; 236 drawable->u.copy.mask.pos.x = 0; 237 drawable->u.copy.mask.pos.y = 0; 238 drawable->u.copy.mask.bitmap = 0; 239 240 drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0); 241 qxl_release_unmap(qdev, release, &drawable->release_info); 242 243 clips_ptr = clips; 244 for (i = 0; i < num_clips; i++, clips_ptr += inc) { 245 rects[i].left = clips_ptr->x1; 246 rects[i].right = clips_ptr->x2; 247 rects[i].top = clips_ptr->y1; 248 rects[i].bottom = clips_ptr->y2; 249 } 250 qxl_bo_vunmap_locked(clips_bo); 251 252 qxl_release_fence_buffer_objects(release); 253 qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false); 254 255 out_release_backoff: 256 if (ret) 257 qxl_release_backoff_reserve_list(release); 258 out_free_image: 259 qxl_image_free_objects(qdev, dimage); 260 out_free_clips: 261 qxl_bo_unref(&clips_bo); 262 out_free_drawable: 263 /* only free drawable on error */ 264 if (ret) 265 free_drawable(qdev, release); 266 267 } 268